<template>
  <view>
    <view class="goods-list">
      <view v-for="(item,i) in goodsList" :key="i" @click="gotoDetail(item)">
       <my-goods :item="item"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数的对象
        queryObj:{
          query:'',
          cid:'',
          pagenum: 1 ,
          pagesize: 10
        },
        goodsList:[],
        total : 0,
        // 节流阀
        isLoading:false
      };
    },
    onLoad(opentions) {
      
      this.queryObj.query = opentions.query || ''
      this.queryObj.cid = opentions.cid || ''
      this.getGoodsList()
    },
    methods:{
      // 获取商品列表数据的方法
      async getGoodsList(cb){
        // 打开节流阀
        this.isLoading = true
        const {data:res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
        // 关闭节流阀
         this.isLoading = false
         
         cb && cb()
         
        if(res.meta.status !== 200) return uni.$showMsg()
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(item){
        uni.navigateTo({
          url:'../goods_detail/goods_detail?goods_id=' + item.goods_id
        });
      }
    },
    onReachBottom() {
      if(this.queryObj.pagenum*this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕 0')
      if(this.isLoading ) return
      // 让页码值自增+1
      this.queryObj.pagenum++
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isLoading = false
      this.goodsList = []
      
      // 重新发起数据请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    },
    
  }
</script>

<style lang="scss">

</style>
